The following code example demonstrates the MoveNext, MoveFirst, Current, and Position members. To run this example, paste the code into a form that imports the System.Drawing.Drawing2D namespace and contains a BindingSource named BindingSource1 and a button named button1. Associate the Form1_Load and Form1_Paint methods with the Load and Paint events for the form, and associate the button1_click method with the Click event for button1. Visual Basic users will need to add a reference to System.Data.dll.

void Form1_Load(object sender, EventArgs e)
{
// Set the data source to the Brush type and populate// BindingSource1 with some brushes.
BindingSource1.DataSource = typeof(System.Drawing.Brush);
BindingSource1.Add(
new TextureBrush(new Bitmap(typeof(Button), "Button.bmp")));
BindingSource1.Add(new HatchBrush(HatchStyle.Cross, Color.Red));
BindingSource1.Add(new SolidBrush(Color.Blue));
}
privatevoid button1_Click(object sender, EventArgs e)
{
// If you are not at the end of the list, move to the next item// in the BindingSource.if (BindingSource1.Position + 1 < BindingSource1.Count)
BindingSource1.MoveNext();
// Otherwise, move back to the first item.else
BindingSource1.MoveFirst();
// Force the form to repaint.this.Invalidate();
}
void Form1_Paint(object sender, PaintEventArgs e)
{
// Get the current item in the BindingSource.
Brush item = (Brush)BindingSource1.Current;
// If the current type is a TextureBrush, fill an ellipse.if (item.GetType() == typeof(TextureBrush))
e.Graphics.FillEllipse(item,
e.ClipRectangle);
// If the current type is a HatchBrush, fill a triangle.elseif (item.GetType() == typeof(HatchBrush))
e.Graphics.FillPolygon(item,
new Point[] { new Point(0, 0), new Point(0, 200),
new Point(200, 0)});
// Otherwise, fill a rectangle.else
e.Graphics.FillRectangle(
(Brush)BindingSource1.Current, e.ClipRectangle);
}